We must, we must, we must increase our bust—via five easy workout moves? A top trainer schools us on the boob-boosting exercises that can make your girls perkier.

If a recent study is to be believed, padded push-up bras are actually hurting our quest for gravity-defying Kate Upton breasts. Would we be crazy to attempt a little boob-boosting exercise?

"Many women ask me how they can make their breasts more perky and prevent future sagging," says certified personal trainer and Morph & Thro fitness model Lauren Pappas. "I suggest doing a series of chest, shoulders, back and core exercises 3 to 5 times a week."

Try 15-20 reps and two to three sets of the following moves:

Pectoral Flys

Grasping two dumbbells, lie on your back on the floor or bench. Bring your arms straight to your sides. Lift dumbbells above your chest, internally rotating shoulders, with elbows pointing out to sides.

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Lower dumbbells to your sides until you feel chest muscles are stretched with elbows in a slightly bent position and repeat.

Chest Press

Lie with your back to the floor or bench, clutch dumbbells and position your hands to the sides of your chest with bent arms.

Press dumbbells up with elbows to side until your arms are extended over your chest.

Get into a push up position on the floor, rest your weight on your forearms, bending them at 90 degrees beneath your shoulders, keeping your body tight and in a straight line. Hold it for one minute and repeat.

Bonus Tip: The simplest way to keep your boobs high and mighty is to hold your head up high. "Improving your posture will help you achieve a more lifted look," suggests Pappas. Looks like your mom was onto something about standing up straight!